Toothbrush



FIG. 1 is a right front perspective view of a toothbrush according to an embodiment of the new design;

FIG. 2 is a left rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

In the drawings, the broken lines of equal length illustrate portions of the toothbrush that form no part of the claimed design. The broken lines of unequal length represent the boundaries of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush, as shown and described. 